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崔松明 , 朱    松

 

( 中国二十冶集团有限公司 , 上海   201999)

摘  要: 为了准确获得软土变形量 , 提出动态增量反演下的软土变形特性仿真分析方法 。利用增量反演分析法将反演参数不断逼近实时测量的变形数据 , 计算软土变形值 。结果表明 : 软土含水率增加 , 摩擦角随之减小 , 土体更容易产生变形 ; 公路分层填筑时的软土变形最大值为 3 cm; 公路摊铺平整时的软土变形最大值为2 cm; 公路碾压压实的软土变形最大值为 3. 5 cm。软土压缩指数对土层自然含水率变化较为敏感 。所提方法的变形仿真分析结果与真实值的误差小于 1 cm, 仿真分析结果具有较高的准确性 。研究成果可为工程设计与施工提供参考。

关键词: 增量反演 ; 高速公路 ; 软土 ; 变形特征 ; 变形分析 ; 弹性模量

中图分类号: TU473      文献标志码: A      文章编号: 1005-8249 (2026) 05-0079-05

DOI:10. 19860/j. cnki. issn1005-8249. 2026. 05. 012

 

CUI Songming, ZHU Song

(China MCC20 Group Co. , Ltd. , Shanghai 201999, China)

Abstract : To accurately obtain soft soil deformation values, a simulation analysis of deformation characteristics of soft soil under dynamic incremental inversion is proposed. Using incremental inversion analysis, the inversion parameters are continuously approximated to real-time measured deformation data to calculate soft soil deformation values. Analysis results indicate: as soft soil moisture content increases, the friction angle decreases, making the soil more prone to deformation; The maximum deformation of soft soil during layered filling of highways is 3 cm; The maximum deformation during paving and leveling is 2 cm; The maximum deformation during compaction is 3. 5 cm. The compression index of soft soil is highly sensitive to changes in natural moisture content. The deformation simulation results from the proposed method exhibit an error of less than 1 cm compared to actual values, demonstrating high accuracy. The research results can provide references for engineering design and construction.

Key words: incremental inversion; highway; soft soil; deformation characteristics; deformation analysis; modulus of elasticity

   

作者简介 : 崔松明 (1981—) , 男, 本科, 高级工程师, 研究方向 : 公路工程软基处理等。